Pasadena, CA 91104 solar market data
Updated May 12, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Pasadena 91104 has 238 solar installations at a median installed cost of $4.07/W, recent growth not yet measurable, and a Market Score of 40 — higher than 36% of U.S. zip markets.
Versus California
How 91104 compares with the state
Installed cost
$0.19/W below
state median $4.26/W
Market score
40 vs 53
California scores 53
Share of state installs
0.01%
of 2.3M tracked statewide
Battery attach
21.0%
state 12.7%
Statewide momentum
▲ 1.1%
residential solar added in California, 12 months through Jul 2026
Statewide market
2.3M systems
30.9% of homes · utility-reported through Jul 2026
Growth & pricing
91104 by year
27 installs in the trailing twelve months vs 17 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 91104
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 23 | 0 | 6.08 | $4.77 |
| 2 | SUNPOWER | 17 | 0 | 6.38 | $5.85 |
| 3 | SUNRUN | 16 | 2 | 6.44 | $3.81 |
| 4 | ALTADENA SOLAR | 14 | 0 | 6.8 | $3.49 |
| 5 | SOLAR OPTIMUM DESIGN ELECTRIC | 11 | 0 | 6.87 | $2.67 |
| 6 | SUNGEVITY | 5 | 0 | 6.13 | $4.11 |
| 7 | FREEDOM FOREVER | 4 | 1 | 7.57 | $4.04 |
| 8 | LOS ANGELES SOLAR PROS | 4 | 1 | 8.15 | $3.72 |
| 9 | AMERIGREEN BUILDERS | 4 | 0 | 6.83 | $2.94 |
| 10 | NRG CLEAN ENERGY | 4 | 0 | 8.86 | $3.80 |
| 11 | SOLCIUS | 4 | 0 | 4.69 | $4.75 |
| 12 | SOUTH WEST BUILDERS | 4 | 0 | 7.6 | $5.51 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 91001 Altadena | 2.9 km | 2,028 | $4.38 | 44 |
| 91107 Pasadena | 3.9 km | 515 | $4.27 | 41 |
| 91108 San Marino | 5.4 km | 584 | $4.43 | 42 |
| 91024 Sierra Madre | 6.8 km | 680 | $4.25 | 54 |
| 91030 South Pasadena | 6.9 km | 978 | $4.25 | 56 |
| 91775 San Gabriel | 6.9 km | 959 | $4.14 | 56 |
Same city
Other zips in Pasadena
Equipment
What gets installed in 91104
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA18.7%
SUNPOWER12.0%
REC GROUP7.7%
LG ELECTRONICS5.7%
CSI SOLAR4.8%
Inverters
ENPHASE ENERGY37.6%
SOLAREDGE25.2%
SUNPOWER8.1%
TESLA7.7%
ABB3.9%
Frequently asked
Quick answers about 91104
How many solar installations are there in 91104?
SolarDNA counts 238 active solar installations in Pasadena 91104, 237 of them residential, with data through May 12, 2026.
How much does solar cost in 91104?
The median residential system in 91104 cost $4.07 per watt over the trailing twelve months, $0.19/W below the California median.
Is solar growing in 91104?
Recent growth cannot be measured yet for 91104: too few recent installs (data runs through May 12, 2026).
Who installs solar in 91104?
TESLA, SUNPOWER, SUNRUN lead the 104 installers with systems in 91104. The full comp set is above.
Is 91104 a good market for solar sales?
91104 scores 40 out of 100 (Good, higher than 36% of U.S. zip markets). With under 500 installations the score is provisional.